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What does the electron in the outer most level determine?
It is generally called the valence electron as it determines the valency of electrons.
Why does the concept of Bohr orbits violate the uncertainty principle?
The Bohr Model of a single-electron atom assumes that the energy levels of electron orbits are fixed due to the quantization of angular momentum of the electron while in orbit. The problem occurs because angular momentum depends on both the radius of the orbit and the velocity of the electron in that orbit. If one or the other is uncertain, then it is impossible to know the angular momentum. Heisenberg showed that either one or the other MUST be uncertain. If we are certain about the radius, we MUST have uncertainty about the velocity -- and vice-versa. Thus, angular momentum of an orbting electron can NOT be quantized, because it can not be known.
How does Heisenberg's uncertainty principle conflict with the Bohr model of hydrogen?
Heisenberg's uncertainty principle states that it is impossible to simultaneously know both the exact position and momentum of a particle. In contrast, the Bohr model of hydrogen assumes a well-defined orbit for electrons which violates this principle. This conflict led to the development of quantum mechanics, which describes the behavior of particles more accurately.
What is the charge and location of electrons?
The charge on electrons is equal to -1.6 X 10-19 C. According to Heisenberg's uncertainty principle, we cannot have the exact location of an electron, only we can have the region where the probability of finding an electron is high.
Does an electron determine what element it is?
The number of protons determine which element an atom is and normally the number of electrons is equal to it. Strip an electron off an iron atom and you have an ionised iron atom.
According to modern atomic theory it is nearly impossible to determine an electrons exact?
According to modern atomic theory, it is nearly impossible to determine an electron's exact position and momentum simultaneously. This is known as the Heisenberg Uncertainty Principle, which states that the more precisely one property is measured, the less precisely the other can be known.
Why can we not accurately predict where in the electron cloud electrons can be found?
One cannot accurately predict where in the electron cloud an electron can be found because of the Heisenberg Uncertainty Principle. This states that the position and the velocity of an object cannot both be measured exactly, at the same time, and since we can determine the velocity of the electron, knowing the location with certainty is not possible. The main reason behind this is that as soon as you "look" at the electron, using whatever method available, you will by the very nature of looking at it, alter its position.
How do you find the relative uncertainty in the mass of the electron?
To find the relative uncertainty in the mass of the electron, you would typically determine the absolute uncertainty in the measurement of the electron's mass and then divide it by the measured value of the electron's mass. Finally, multiplying by 100 will give you the relative uncertainty as a percentage.
How can one determine the number of valence electrons in an electron configuration?
To determine the number of valence electrons in an electron configuration, look at the outermost energy level of the atom. The number of electrons in this level is the number of valence electrons.
Can the exact location of an electron be known at any time y?
The exact location of an electron can not be known. Electrons' locations can be merely estimated. Electron "clouds" or orbitals are general areas where an electron is likely to be found. There is always uncertainty as to where the electron actually is.
How can one determine the number of valence electrons in an atom using its electron configuration?
To determine the number of valence electrons in an atom using its electron configuration, look at the highest energy level (n) in the electron configuration. The number of electrons in this energy level is the number of valence electrons.
How can one determine the number of valence electrons from an electron configuration?
To determine the number of valence electrons from an electron configuration, look at the highest energy level (n value) of the electrons in the configuration. The number of electrons in this highest energy level is the number of valence electrons.
Can the motion of electrons be predicted precisely?
no
How can one determine the number of valence electrons in an atom based on its electron configuration?
To determine the number of valence electrons in an atom based on its electron configuration, look at the outermost energy level of the atom. The number of electrons in this energy level is the number of valence electrons.
What does the electron in the outer most level determine?
It is generally called the valence electron as it determines the valency of electrons.
Why does the concept of Bohr orbits violate the uncertainty principle?
The Bohr Model of a single-electron atom assumes that the energy levels of electron orbits are fixed due to the quantization of angular momentum of the electron while in orbit. The problem occurs because angular momentum depends on both the radius of the orbit and the velocity of the electron in that orbit. If one or the other is uncertain, then it is impossible to know the angular momentum. Heisenberg showed that either one or the other MUST be uncertain. If we are certain about the radius, we MUST have uncertainty about the velocity -- and vice-versa. Thus, angular momentum of an orbting electron can NOT be quantized, because it can not be known.
Why is it impossible to know precisely the velocity and position of an electron at the same time.?
This is because of the Heisenberg uncertainty principle. It is a part of quantum mechanics. It has to do with an electron having properties of both a particle and and wave. If you only imagine an electron to be a particle, this can be somewhat explained by the process of measuring the position or velocity of the electron. If the data is measured with light, then when a photon hits the electron, it changes the electrons speed and position. We may be able to find one, but in the process, the other will be changed.
